短語(yǔ)詞組短語(yǔ)design for coal -preparation plant 選煤廠(chǎng)設(shè)計(jì)coal -handling and preparation 煤加工制備pulverized -coal preparation 粉煤備制preparation coal -water mixture 水煤漿制備coal preparation system -new technology-application 備煤系統(tǒng)新技術(shù)應(yīng)用heavy -media coal preparation process 重介選煤工藝high -efficient coal preparation plant 高效選煤廠(chǎng)multi -story coal preparation building 多層選煤廠(chǎng)房 返回 coal preparation